Scintillator panel

Abstract

A scintillator panel comprising: (a) a scintillator sheet comprising: (i) a substrate, and (ii) a phosphor layer formed on the substrate; (b) a first protective film provided on a phosphor layer side surface of the scintillator sheet; and (c) a second protective film provided on a substrate side surface of the scintillator sheet, wherein (d) the scintillator sheet is sealed by the first protective film and the second protective film; and (e) the first protective film is not substantially coherent with the phosphor layer.

1. A radiographic image detecting apparatus comprising a scintillator panel and a flat panel detector, wherein the scintillator panel comprising:
 (a) a scintillator sheet comprising:
 (i) a substrate, and 
 (ii) a phosphor layer comprising cesium iodide (CsI) formed on the substrate; 
 
 (b) a first protective film provided on a phosphor layer side surface of the scintillator sheet; and 
 (c) a second protective film provided on a substrate side surface of the scintillator sheet, 
 
     wherein
 (d) the scintillator sheet is sealed by the first protective film and the second protective film; and 
 (e) the first protective film contacts the phosphor layer at a number of point contacts, wherein the density of point contacts ranges from 0.1 - 25 point contacts per mm 2 . 
 
   
   
     2. The scintillator panel of  claim 1 , wherein a surface roughness Ra of a surface of the phosphor layer is 0.1 μm to 5.0 μm. 
   
   
     3. The scintillator panel of  claim 1 , wherein a surface roughness Ra of a surface of the first protective film facing the phosphor layer is 0.1 μm to 5.0 μm. 
   
   
     4. The scintillator panel of  claim 1 , wherein transparent particles having diameters of 0.5 μm to 10 μm are provided on the phosphor layer before sealing the scintillator sheet by the first protective film and the second protective film. 
   
   
     5. The scintillator panel of  claim 1 , wherein the scintillator sheet is sealed under a pressure of 5 Pa to 8000 Pa. 
   
   
     6. The scintillator panel of  claim 1 , wherein each of the first protective film and the second protective film has a thickness of 12 μm to 60 μm and a haze ratio of 3 %to40 %. 
   
   
     7. The scintillator panel of  claim 1 , wherein each of the first protective film and the second protective film has a moisture permeability of 0.01 g/m 2 /day to 50 g/m 2 /day under a condition of 40 ° C. and 90 %RH. 
   
   
     8. The scintillator panel of  claim 1 , wherein the phosphor layer is formed by a vapor deposition method on the substrate.